islavsISSNConfusable pair

Which to use

“isla” and “ISSN” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#36,015
“isla” frequency rank
#37,392
“ISSN” frequency rank
73407
confusion score

Side-by-Side Comparison

Feature isla ISSN
Definition Île. Numéro international d’identification des publications périodiques.

Where the eye mixes isla and ISSN

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
isla
4 ch
ISSN

Why the eye confuses isla with ISSN

A purely visual mix-up. isla (\ˈis.la\) and ISSN (\i.ɛ.s‿ɛ.s‿ɛn\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 73407, derived from the frequency rank of both members and their visual similarity.

isla is recorded at frequency rank #36,015, classified as anoun, pronounced \ˈis.la\. ISSN is at rank #37,392, tagged as anoun, pronounced \i.ɛ.s‿ɛ.s‿ɛn\.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 73407, this pair ranks #40,579 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of isla vs ISSN

Shared letters: is. Private to "isla": al. Private to "ISSN": n.

"isla" · 4 letters · shape VCCV  ·  "ISSN" · 4 letters · shape VCCC

Known mistypes of this pair

  • islaisal · islla · issla · sila
  • ISSNisn · isns · issnn · sisn

Frequently Asked Questions

Is swapping "isla" for "ISSN" ever safe?
No. They are said differently (\ˈis.la\ versus \i.ɛ.s‿ɛ.s‿ɛn\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "isla" or "ISSN" show up more?
"isla" is the more common of the two: it sits at frequency rank #36,015 in our French list, against #37,392 for "ISSN". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "isla" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ISSN" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #40,579 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "isla" and "ISSN" also get mixed up with nearby pairs, the highest-scored neighbour is "isi vs ISSN". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #40,579 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list